6814 Suchergebnisse für: „“

z-STED Imaging and Spectroscopy to Investigate Nanoscale Membrane Structure and Dynamics

Super-resolution stimulated emission depletion (STED) microcopy provides optical resolution beyond the diffraction limit. The resolution can be increased laterally (xy) or axially (z). Two-dimensional...

Influenza A viruses use multivalent sialic acid clusters for cell binding and receptor activation

Influenza A virus (IAV) binds its host cell using the major viral surface protein hemagglutinin (HA). HA recognizes sialic acid, a plasma membrane glycan that functions as the specific primary attachment...

Weak Polyampholytes at the Interface of Magnetic Nanocarriers: A Facile Catch-and-Release Platform for Dyes

We present a platform of charge-invertible core−shell hybrid particles for the selective and reversible adsorption of small charged molecules as model systems. The herein employed carrier systems consist...

Biocompatible Magnetic Fluids of Co-Doped Iron Oxide Nanopoparticles with Tunable Magnetic Properties

Magnetite (Fe3O4) particles with a diameter around 10 nm have a very low coercivity (Hc) and relative remnant magnetization (Mr/Ms), which is unfavorable for magnetic fluid hyperthermia. In contrast, cobalt...

The Bouguer-Beer-Lambert law: Shining light on the obscure

The Beer-Lambert law is unquestionably the most important law in optical spectroscopy and indispensable for the qualitative and quantitative interpretation of spectroscopic data. As such, every spectroscopist...

Genotyping of methicillin resistant Staphylococcus aureus from the United Arab Emirates

Reports from Arabian Gulf countries have demonstrated emergence of novel methicillin resistant Staphylococcus aureus (MRSA) strains. To address the lack of data from the United Arab Emirates (UAE), genetic...

Highly Adjustable Three-Dimensional Hollow Pt(Au)Cu Nanonetwork Structures as Enhancing Electrocatalysts for Alcohol Oxidation Reaction

Pt-based nanomaterials are proven as one of the most efficient catalysts for direct alcohol fuel cells. However, it is a challenge to construct Pt-based catalysts with high catalytic activity and less...

Characterization of Staphylococci and Streptococci Isolated from Milk of Bovides with Mastitis in Egypt

The aim of this study was to characterize staphylococci and streptococci in milk from Egyptian bovides. In total, 50 milk samples were collected from localities in the Nile Delta region of Egypt. Isolates...

Imaging the Invisible – Bioorthogonal Raman Probes for Imaging of Cells and Tissues

A revolutionary avenue for vibrational imaging with super-multiplexing capability can be seen in the recent development of Raman-active bioortogonal tags or labels. These tags and isotopic labels represent...

Hybrid Nanomaterials of Biomolecule Corona Coated Magnetic Nanoparticles and their Interaction with Biological Systems